WO2021058862A1 - Outil destiné au traitement mécanique d'un plancher en béton - Google Patents

Outil destiné au traitement mécanique d'un plancher en béton Download PDF

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Publication number
WO2021058862A1
WO2021058862A1 PCT/FI2020/050609 FI2020050609W WO2021058862A1 WO 2021058862 A1 WO2021058862 A1 WO 2021058862A1 FI 2020050609 W FI2020050609 W FI 2020050609W WO 2021058862 A1 WO2021058862 A1 WO 2021058862A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
trowel
tool according
floating blade
elements
Prior art date
Application number
PCT/FI2020/050609
Other languages
English (en)
Inventor
Mika Ahonen
Original Assignee
Concria Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Concria Oy filed Critical Concria Oy
Priority to US17/754,070 priority Critical patent/US20220364375A1/en
Publication of WO2021058862A1 publication Critical patent/WO2021058862A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/20—Implements for finishing work on buildings for laying flooring
    • E04F21/24—Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
    • E04F21/245—Rotary power trowels, i.e. helicopter trowels
    • E04F21/247—Rotary power trowels, i.e. helicopter trowels used by an operator sitting on the trowel, i.e. ride-on power trowels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/20—Implements for finishing work on buildings for laying flooring
    • E04F21/24—Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
    • E04F21/245—Rotary power trowels, i.e. helicopter trowels
    • E04F21/248—Rotary power trowels, i.e. helicopter trowels used by an operator walking behind the trowel, i.e. walk-behind power trowels

Definitions

  • the invention relates to a tool as presented in the preamble of the independent claim directed thereto for the treatment of a concrete floor surface, such as for power trowel floating and finishing with blades, by conducting the work with e.g. ahand-operated,walk-behind or ride-on actuator.
  • a common practice in the foregoing purpose is to employ a concrete power trowel of e.g. the walk-behind type shown in fig. 1a or the ride-on type shown in fig. 1b, or a floor treating machine, i.e.a so-called cleaning machine, of the type shown in fig. 1c.
  • the operating head, i.e. a so-called rotor, of such an actuator consists typically of four attachment arms perpendicular to each other and fitted with concrete trowel elements used each time in the power trowel floating of e.g. a concrete floor.
  • the employed concrete trowel elements connectable to the rotor of an actuator conventionally comprise a one-piece circular trowel pan or trowel blades fastened to its attachment arms.
  • the US patent 7,775,741 discloses a method and apparatus for surface finishing cured concrete with a concrete power trowel by using diamond pads, whereby the diamond pads, included e.g. in individual attachment seats of circular cross-section, are adapted to be adjusted in a spring-loaded manner to a tilted position matching the concrete surface to be abraded.
  • the attachment seats are fixedly fastened by welding to the bottom of apower trowel' s trowel pan or to rigid metal strips welded thereto.
  • the spring loading arrangements enabling a tiling motion of diamond pads in the attachment seats comprise three plungers, which are capable of being fitted by screw adjustment inside the attachment seat and whose points, pressing against a metal plate glued to the bottom of the diamond pad, will be able to depress in a spring-loaded manner into the plunger so as to enable tilting of the diamond pad.
  • a drawback with the spring loading arrangement used in the aforementioned solution is that the attachment seats are complicated in construction, laborious to assemble, and inconvenient in terms of installation and maintenance.
  • the diamond pads When coupled to a trowel pan by using attachment seats, the diamond pads will be placed at quite a distance from the trowel pan, thereby increasing the risk of breakage for diamond pads.
  • the diamond pads are not able in prolonged service to remain consistently in parallel re- lationship with the presently abraded floor surface, which necessitates repair or replacement of the plungers so as not to allow uneven wear of the diamond pads.
  • An objective of the present working tool, developed for the treatment of a concrete floor, is to provide a decisive improvement over the above-described problems and to thereby raise essentially the available prior art.
  • the working tool according to the invention is principally characterized by what is presented in the characterizing clause of the independent claim directed thereto,
  • a tool of the invention should noted to include the simplicity and ef- fectiveness of its construction and assembly,as well as its use, first by virtue of the tool being installable to and removable from a trowel blade without utensils, which enables a rapid replacement of just the trowel pans that are susceptible to wearing. This enables highly effective continuous operation without detrimental disruptions caused by a replacement of the working tool; e.g. "finishing with blades" has a certain time frame during which the concrete floor must be treated.
  • One benefit offered by a working tool of the invention is also the possibility of being used with equal effectiveness in connection with both a new and old trowel floating blade.
  • any sufficiently stiffmaterial such as various types of plastic, a metal, i.e. e.g. stainless steel or aluminum, carbon fiber, wood, ceramic, composite, or the like.
  • the manufacturing material produced e.g. by processing be modified as nec- essary by incorporating therein e.g. glass, fiber glass or carbon fiber synthetic diamond, etc. for improving wear resistance.
  • the working tool's shape can be also be readily varied so as to achieve optimal smoothness for a concrete floor finished with blades.
  • the working toolbe also provided with elements used for abrading a concrete floor, such as e.g. with a diamond abrading arrangement which comprises one or more diamond discs attachable to the working tool in a removable manner,preferably in a quick coupling principle such as with a Velcro surface arrangement or the like.
  • elements used for abrading a concrete floor such as e.g. with a diamond abrading arrangement which comprises one or more diamond discs attachable to the working tool in a removable manner,preferably in a quick coupling principle such as with a Velcro surface arrangement or the like.
  • the elements for engaging the working tool with the trowel floating blade is provided preferably in a quick coupling principle by using guide channels, which are included in a substantially flat and elongated body of the working tool on opposite sides thereof,and inside which the opposite side edges of the trowel floating blade are cable of being slid in a longitudinal direction of the working tool and the trowel floating blade, and which further make it possible that the resilience system that enables tilting motions of the working tool be positioned between the trowel floating blade and the working tool.
  • the resilience system comprises e.g. one or more springs or a washer fabricated from an elastic material, e.g. "washing pad" material.
  • FIGS. 2a and 2b show perspective top views of the relative movement between a tool of the invention and a trowel floating blade in the process of coupling the same to each other and with the tool in engagement with the trowel floating blade
  • figs. 3a - 3c show, in a bottom assembly view, in a top view, and in a bottom view,one preferred embodiment for a tool of the invention together with an integral diamond abrading arrangement engageable/engaged therewith in a removable manner, figs.
  • FIG. 4a - 4c show, in a top view,in a bottom view,and in a bottom assembly view, one preferred embodiment for a tool of the invention together with diamond discs engageable/engaged therewith in a removable manner
  • figs, 5a - 5c show, in top view, in a top assembly view, and in a side view, one resilience system-equipped em bodiment for a tool of the invention together with an integral diamond abrading arrangement engageable/engaged therewith in a removable manner
  • figs. 6a and 6b show, in perspective views, still another alter- native embodiment for a tool of the invention as viewed from above in the process of coupling the same to a trowel floating blade and while it is in engagement with the trowel floating blade
  • figs. 7a - 7c show, in a perspective view,the assembly for a tool of figs.6a and 6b asviewed from above and from below, and the tool in an assembled condition asviewed from below.
  • the invention relates to a tool for the mechanical treatment of a concrete floor, such as for power trowel floating and finishing with blades, for conducting the treatment with a hand-operated,walk-behind or ride-on actuator,such as e.g. with a concrete power trowel, a floor treating apparatus, or the like.
  • the actuator includes one or more operating heads A, which consist of several, most typically four, attachment arms A1perpendicular to each other,for treating a concrete floor with tools coupled in a removable manner into the engagement with each attachment arm.
  • a tool lb is intended for use in engagement with a trowel floating blade la coupled to an attachment arm A1 of the actuator's op- erating head A, whereby the tool with a substantially flat and elongated body R includes first and second elements y, z for its coupling and locking on a quick coupling principle for immovable engagement with the trowel floating blade la.
  • the first elements y are provided by guide channels, which lie on opposite sides of the tool's body R and inside which the trowel floating blade's la opposite side edges are capable of being slid on a principle appearing from figs.2a and 6a in a longitudinal direction s of the tool and the trowel floating blade.
  • the second elements z are provided by a locking/retaining projection present at an end edge of the tool, which projection, in the process of sliding the tool relative to the trowel floating blade in the longitudinal direction s,attaches on a principle appearing e.g.from fig. 2a against a rear edge of the trowel floating blade.
  • the locking/retaining projection of the second elements z is disposed at the end of a flexible body portion R1 separated with kerfs U from the body R of the tool lb and protruding in the longitudinal direction s from the body's rear edge.
  • the tool is capable of being fastened to the trowel floating blade la coupled to the attachment arm A1 of an actuator's rotor A on a principle appearing from e.g. fig. 2a by pushing I the body portion R1 sufficiently downward and by thereafter sliding II the tool 1b under the trowel floating blade 1a, whereby the parts become locked to each other according to fig.
  • a tool of the invention referring particularly to fig. 2a, its body R is provided with means H, such as a marking or notch arrangement, for adapting the tool lb to trowel floating blades la differing from each other in terms of length, thereby enabling ef- fortless use of the tool also with trowel floating blades of varying lengths.
  • means H such as a marking or notch arrangement
  • the tool lb is rigid in construction and fabricated from a substantially thin-walled metal, plastic, composite, ce - ramic material and/or the like.
  • the tool is fabricated preferably from e.g. ABS, PS, ABS+PC, PETG, PVC, PMMA, ABS+PMMA, PP or APET plastic.
  • the tool's b body R comprises a consolidated unit fabricated from a single,most preferably plastic-based material by processing such as casting or pressing and/or by machining such as milling.
  • the tool's 1b body R comprises a base member R2 which consists of a rigid, most preferably metallic material, and a trowel pan R3 connected thereto with a quick coupling arrangement P and fabricated most preferably from a plastic-based material.
  • the quick coupling arrangement P is preferably implemented with mutual form locking between a locking pin P1 present on a bottom of the base member R2 and a locking slot P2 present on a top surface of the trowel pan R3, whereby the locking pin P1works its way through a hole present at an end of the locking slot P2 into an inside of the base member R2 and, as the trowel pan R3 is moved in its longitudinal direction s, becomes locked therein in a vertical direction t.
  • a tool of the invention comprises elements for abrading a concrete floor, such as a diamond abrading arrangement 2, in which respect figs, 3a-3c illustrate, in a bottom assembly view, in a top view, and in a bottom view, one preferred embodiment for a tool of the invention together with a integral diamond abrading arrangement engageable/engaged therewith in a removable manner,
  • the diamond abrading arrangement included in a tool 1b presented as an optional solution in figs. 4a-4c, comprises several diamond pads 2 or the like capable of being fastened thereto in a removable manner, most preferably on a quick coupling principle, such as with a Velcro surface arrangement tp or the like.
  • the elements for coupling the tool lb into engagement with the trowel floating blade la by way of the guide arrangement z comprise, between the trowel floating blade la and the tool, a resilience system JJ enabling tilting movements of the tool.
  • the resilience system JJ comprises e.g.one or more springs or e.g.a washer disc made of an elastic material (such as e.g. washing pad material).

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

L'invention concerne un outil destiné au traitement mécanique d'un plancher en béton, comme pour le talochage et la finition à la truelle électrique avec des lames, pour conduire le traitement avec un actionneur à main, à poussée ou auto-porté, comme par exemple, avec une truelle électrique pour béton, un appareil de traitement de sol, ou similaire. L'actionneur comprend une ou plusieurs têtes d'actionnement (A), qui sont constituées de plusieurs, par exemple quatre, bras de fixation (Al) perpendiculaires les uns par rapport aux autres, pour traiter un plancher en béton avec des outils couplés de manière amovible dans la mise en prise avec chaque bras de fixation. Un outil (lb) est destiné à être utilisé dans une mise en prise avec une lame de talochage de truelle (la) couplée à un bras de fixation (Al) de la tête d'actionnement de l'actionneur (A). L'outil (lb) avec un corps sensiblement plat et allongé (R) comprend des premier et second éléments pour son couplage et verrouillage sur un principe de couplage rapide permettant une mise en prise immobile avec la lame de talochage de truelle (la).
PCT/FI2020/050609 2019-09-23 2020-09-22 Outil destiné au traitement mécanique d'un plancher en béton WO2021058862A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/754,070 US20220364375A1 (en) 2019-09-23 2020-09-22 Tool for the mechanical treatment of a concrete floor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20195794 2019-09-23
FI20195794 2019-09-23

Publications (1)

Publication Number Publication Date
WO2021058862A1 true WO2021058862A1 (fr) 2021-04-01

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ID=75165762

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2020/050609 WO2021058862A1 (fr) 2019-09-23 2020-09-22 Outil destiné au traitement mécanique d'un plancher en béton

Country Status (2)

Country Link
US (1) US20220364375A1 (fr)
WO (1) WO2021058862A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11643827B2 (en) 2020-05-07 2023-05-09 Plate 2000 Inc. Assembly for improving performance and lifespan of a concrete finishing pan
DE102022111193A1 (de) 2022-05-05 2023-11-09 Friedrich August Picard Gmbh & Co. Kg Schleifblock

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2662454A (en) * 1948-04-12 1953-12-15 Whiteman Marvin Edwin Float trowel for cement floor finishers
EP0561610A1 (fr) * 1992-03-16 1993-09-22 De Beers Industrial Diamond Division (Proprietary) Limited Patin de polissage
US20050254896A1 (en) * 2004-05-17 2005-11-17 Ewer Charles J Rotating concrete finishing trowel
US20070292207A1 (en) * 2006-05-26 2007-12-20 Johnny Reed Methods and apparatuses for surface finishing cured concrete
US20090028643A1 (en) * 2007-07-25 2009-01-29 Wagman Metal Products, Inc. Mounting adapter for concrete surface processing tool
US20110167626A1 (en) * 2010-01-12 2011-07-14 Ye Hongyu Structure for installing split-style diamond grinding disk
WO2017053737A1 (fr) * 2015-09-24 2017-03-30 Diamond Tool Supply, Inc. Ensemble de tampon de polissage ou de meulage

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2662454A (en) * 1948-04-12 1953-12-15 Whiteman Marvin Edwin Float trowel for cement floor finishers
EP0561610A1 (fr) * 1992-03-16 1993-09-22 De Beers Industrial Diamond Division (Proprietary) Limited Patin de polissage
US20050254896A1 (en) * 2004-05-17 2005-11-17 Ewer Charles J Rotating concrete finishing trowel
US20070292207A1 (en) * 2006-05-26 2007-12-20 Johnny Reed Methods and apparatuses for surface finishing cured concrete
US20090028643A1 (en) * 2007-07-25 2009-01-29 Wagman Metal Products, Inc. Mounting adapter for concrete surface processing tool
US20110167626A1 (en) * 2010-01-12 2011-07-14 Ye Hongyu Structure for installing split-style diamond grinding disk
WO2017053737A1 (fr) * 2015-09-24 2017-03-30 Diamond Tool Supply, Inc. Ensemble de tampon de polissage ou de meulage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11643827B2 (en) 2020-05-07 2023-05-09 Plate 2000 Inc. Assembly for improving performance and lifespan of a concrete finishing pan
DE102022111193A1 (de) 2022-05-05 2023-11-09 Friedrich August Picard Gmbh & Co. Kg Schleifblock

Also Published As

Publication number Publication date
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